S3C2410_WTDAT
writel(wdt->count, wdt->reg_base + S3C2410_WTDAT);
writel(count, wdt->reg_base + S3C2410_WTDAT);
writel(0x80, wdt_base + S3C2410_WTDAT);
wdt->wtdat_save = readl(wdt->reg_base + S3C2410_WTDAT);
writel(wdt->wtdat_save, wdt->reg_base + S3C2410_WTDAT);